Embossed paper in combination with paper cushioning for shipping envelopes

Patent metadata

Field	Value
Publication number	US-11440305-B2
Application number	US-202016870195-A
Country	US
Kind code	B2
Filing date	May 8, 2020
Priority date	Jun 26, 2017
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

According to some illustrative embodiments, a protective product is provided that includes: at least one expandable slit paper sheet, said at least on expandable slit paper being expanded between opposing ends of said slit paper; a first embossed paper sheet facing said expanded slit paper sheet and a second paper sheet facing an opposite side of said at least one expanded slit paper sheet, at least one of said first embossed paper sheet and said second paper sheet being fixed to said expanded slit paper sheet at the opposing ends of said expanded slit paper sheet and thereby maintaining said expanded paper in its expanded state, said first embossed paper sheet having a plurality of embossings that increase the rigidity of said embossed paper sheet, whereby inhibiting deformation of said embossed paper sheet that is fixed to said expanded slit sheet paper.

First claim

What is claimed is:

1. A protective product, comprising:
at least one expandable slit paper sheet having opposing ends and opposing lateral sides extending between said opposing ends, said at least one expandable slit paper sheet being expanded between said opposing ends of said at least one slit paper sheet;
a first embossed paper sheet facing a surface of said at least one expanded slit paper sheet, said first embossed paper sheet having an embossment pattern comprising a two-dimensional array of substantially contiguous shapes; and
a second paper sheet facing an opposite surface of said at least one expanded slit paper sheet,
at least one of said first embossed paper sheet and said second paper sheet being fixed to said at least one expanded slit paper sheet at said opposing ends of said at least one expanded slit paper sheet forming opposing fixed ends, thereby maintaining said at least one expanded slit paper sheet in its expanded state, said embossment pattern extending alongside said at least one expanded slit paper sheet in a region of the at least one expanded slit paper sheet between said opposing fixed ends, wherein said region of the at least one expanded slit paper sheet, including said opposing lateral sides of said at least one expanded slit paper sheet within said region, may contact but is free of being fixed to said first embossed paper sheet and/or said second paper sheet, wherein said embossment pattern increases rigidity of said first embossed paper sheet and inhibits deformation of first embossed paper sheet due to contraction forces of said at least one expanded slit paper sheet.

2. The protective product according to claim 1 , wherein said two-dimensional array of substantially contiguous shapes comprises embossed geometric shapes.

3. The protective product according to claim 1 , wherein said two-dimensional array of substantially contiguous shapes comprises geometric shapes having embossed peripheral borderlines, forming embossed ribs.

4. The protective product according to claim 1 , wherein said two-dimensional array of substantially contiguous shapes includes an array of embossed polygons that share sides with adjacent polygons.

5. The protective product according to claim 3 , wherein said polygons include hexagons.

6. The protective product according to claim 1 , wherein said embossment pattern includes embossments that are indented to extend inwardly from a plane toward said at least one expanded slit paper sheet.

7. The protective product according to claim 1 , wherein said embossment pattern extends from a plane of said first embossed a distance sufficient to provide said rigidity and less than 0.1 inches.

8. The protective product according to claim 7 , wherein said distance is less than 0.05 inches.

9. The protective product according to claim 8 , wherein said distance is less than 0.03 inches.

10. The protective product according to claim 1 , wherein said second paper sheet is a second embossed paper sheet having a second embossment pattern, wherein the second embossment pattern is the same as or different from the first embossment pattern.

11. The protective product according to claim 10 , wherein said second embossment pattern comprises embossments varying between being recessed and being raised from a plane.

12. The protective product according to claim 1 , wherein said at least one expanded slit paper sheet is a plurality of expanded slit paper sheets in an expanded state layered alongside each other.

13. The protective product according to claim 12 , wherein said plurality of expanded slit papers sheets comprises two expanded slit paper sheets, and said second paper sheet is a second embossed paper sheet having a second embossment pattern, wherein the second embossment pattern is the same as or different from the first embossment pattern.

14. The protective product according to claim 1 , wherein said at least one expandable slit paper sheet is an extensible paper having an extensible range, measured in a pre-slit configuration, of 1 to 20% in a machine direction.

15. The protective product according to claim 14 , wherein said extensible range is 3 to 20% in a machine direction.

16. The protective product according to claim 15 , wherein said extensible range is 3 to 9% in a machine direction.

17. The protective product of claim 1 , wherein said at least one expandable slit paper sheet is a paper having a weight in the range from about 30 to 50 pounds per 3000 sq. ft.

18. The protective product according to claim 1 , wherein said protective product is a recyclable paper product.

19. The protective product according to claim 1 , wherein said first embossed paper sheet, said at least one expanded slit paper sheet, and said second paper sheet are folded along a fold line disposed between said opposing fixed ends and fixed together forming a pouch region.

20. The protective product according to claim 19 , wherein said protective product has a flap that is foldable to enclose said pouch region.

21. The protective product according to claim 20 , wherein at one of said opposing fixed ends, said first embossed paper sheet, said at least one expanded slit paper sheet, and said second paper sheet are fixed together with an adhesive within a flap region, said flap being crushed at least in said flap region containing said adhesive.

22. The protective product according to claimer 19 , wherein a region containing said fold line is free of adhesive.

23. A padded envelope comprising the protective product according to claim 1 , the envelope comprising:
said first embossed paper sheet, said at least one expanded slit paper sheet, and said second paper sheet being folded along a fold line disposed between said opposing fixed ends forming front and back walls of a pouch, and opposing sides of said first embossed paper sheet and/or opposing sides of said second paper sheet being fixed together to form sides of said pouch.

24. The padded envelope of claim 23 , wherein said opposing sides of said first embossed paper sheet and/or said opposing sides of said second paper sheet are fixed together with an adhesive.

25. The padded envelope of claim 23 , further including an address label fixed to said envelope.

26. The padded envelope of claim 23 , wherein said first embossed paper sheet is an inner layer and said embossment pattern comprises embossments that are bulged outwardly from a plane, away from said at least one expanded slit paper sheet and facing an interior of said pouch of said envelope, whereby said embossments help limit friction applied to an item inserted into said pouch.

27. The padded envelope of claim 23 , wherein said substantially contiguous shapes include embossed hexagons or hexagons having embossed peripheral borderlines.

28. A protection method, comprising:
providing the protective product of claim 19 ; and
placing an item to be protected within said pouch region of said protective product.

29. A mailing method, comprising:
providing the padded envelope of claim 23 ; and
placing an item to be protected within said envelope.

Assignees

• Goodrich David Paul

Inventors

• Goodrich David Paul

Classifications

• B32B2553/02

  Shock absorbing · CPC title

• B32B3/04

  characterised by {at least one} layer folded at the edge, e.g. over another layer {; characterised by at least one layer enveloping or enclosing a material} · CPC title

• Y02W30/80

  Packaging reuse or recycling, e.g. of multilayer packaging (bio-packaging Y02W90/10) · CPC title

• B31B70/00

  Making flexible containers, e.g. envelopes or bags · CPC title

• B31B70/001

  Shaping, other than by folding, sheet material under pressure · CPC title